Hi,

Yes. You can do it, but the best approach depends on how much interaction the original character has with the scene.

From the clip you uploaded, it looks like a live-action trend where the camera moves and a person is interacting with another person and the environment. Simply replacing the person isn't something CapCut can do automatically with a single button.

Here are your main options, from easiest to most convincing:

Option 1: Green Screen Overlay (Best if your character is 2D or pre-rendered)

If your character is an image, PNG sequence, or rendered animation:

1. Create an animation of your character on a transparent background (or green screen).

2. Import the trend video into CapCut.

3. Add your character as an Overlay.

4. Use Cutout → Chroma Key (green screen) or import transparent media.

5. Resize and position the character.

6. Use Keyframes every few frames so the character follows the original actor's movement.

7. Add Motion Blur and color adjustments so it blends with the footage.

Pros: Easy and entirely possible in CapCut.

Cons: You'll be manually animating the character's position.

Option 2: AI Cutout + Replace

If you want to replace the existing actor:

1. Duplicate the original video.

2. On the top layer, use Auto Cutout (if it detects the person well).

3. Remove or hide the original subject.

4. Place your own character beneath or above as needed.

5. Animate your character with keyframes to match the actor.

This works best if the background doesn't change much.

Option 3: Motion Tracking (Recommended)

If your version of CapCut includes Motion Tracking:

1. Add your character as an overlay.

2. Select the overlay.

3. Use Tracking and choose a point on the actor (head, chest, etc.).

4. Let CapCut generate the track.

5. Fine-tune with keyframes where the tracking slips.

This is much less work than animating every frame.

Option 4: Full Character Replacement (Most Professional)

If your goal is for viewers to believe your character was actually filmed there:

• Track the camera in software like After Effects, Blender, or DaVinci Resolve.

• Animate your character to match the actor's movements.

• Composite it back into the footage.

• Use CapCut only for the final edit.

This gives by far the best results, but requires more advanced software.

For the clip you shared

Since the camera is handheld and the actor moves around another person, I would recommend:

1. Remove the original actor with Auto Cutout if possible.

2. Add your character as a transparent overlay.

3. Use Motion Tracking on the actor's head or torso.

4. Add manual keyframes whenever the track drifts.

5. Match the original lighting and add a small amount of motion blur.

That combination is the most practical way to recreate this trend inside CapCut.

If your character is:

• 2D artwork (anime/cartoon)

• 3D model (VRM/Blender)

• VTuber avatar

• AI-generated character

I can give a more specific workflow tailored to that type.